Ditching



(No Model.) 7 Sheets-Sheet 1. E. 0. ROOD.

DITGHING, DREDGING, 0R BXOAVATING MACHINE. No. 386,438.

Patented July 17, 1888.

WITNESSES:

(No Model.) 7 SheetsSheet 2. E. 0. R001).

DITGHING, DREDGING, OR EXOAVATING MACHINE. No. 386.438.

WITNESSES:

(No Model.) 7 Sheets-Sheet 3.

E. 0. ROOD. DITGHING, DREDGING, 0R EXGAVATING MACHINE. No. 386,438. Patented July 17, 1888.

WITNESSES a f jwmzz (No Model.) 7 SheetsSheet 4.

DITOHING, DREDGING, 0R EXGAVATING MACHINE. No. 386,488. Patented July 17, 1888.

(No Model.) 7 SheetsSheet 5.

E. 0. ROOD.

DITGHING, DREDGING, OR EXGAVATING MACHINE. No. 386,438. Patented July 17, 1888.

WI ES:

a o/ zy (No Model.) 7 Sheets-Sheet 7. E. O. ROOD.

DITGHING, DREDGING, OR EXGAVATING MACHINE.

UNITED STATES PATEN EDWIN 0. E001), OF CHICAGO, ILLINOIS, AssioNoR, or ONE HA'LE TO J OLIVER B. GREEN, OF SAME PLACE.

DITCHING, DREDGING, OR EXCAVATING MACHINE.

SPECIFICATION forming part of Letters Patent No. 386,438, dated July 17, 1888.

Application tiled January 19. 1888. Serial No. 261,260. (No model.)

To all whom it may concern.-

Be it known that I, EDWIN O. ROOD, a citizen of the United States, residing in the city ing, or excavating machine having two swinging booms adapted to be operated alternately. By this provision the excavated earth or material may be thrown on opposite sides of a ditch or between two ditches, 'as desired.

It also consists of guides adapted to cause the shaping of the sides of a ditch or excavatlOn.

It also consists of means for clamping or gripping the spar for holding the boom in position during the loading operation.

It also consists of means'for-adjnsting the boom so that ditches of a different depth may be dug.

It further consists of novel features in the winding-d ru ms, as will be hereinafter set forth.

Figure 1 represents a front elevation of a ditching, dredging,or excavating machine embodying my invention. Fig. 2 represents a perspective view of the winding-drums thereof and connected parts on an enlarged scale. Fig. 3 represents a perspective view of the gripping mechanism for the spar of the machine on an enlarged scale. Fig. 4 represents a perspective view of brake mechanism on an enlarged scale. Fig. 5 represents a side elevation of a boom, spar, &c., on an enlarged scale. Fig. 6 represents a perspective view of a portion ofFig. 5 on an enlarged scale. Figs.

'7, 8, and 9 represent views of detached portions of Fig. 6. Fig. 10 represents side elevations of brake mechanism on an enlarged scale. Fig. 11 represents a section on line as m, Fig. 10. Fig. 12 represents a section of the lower portion of Fig. 3 on an enlarged scale. Fig. 13 represents a front view of a modification.

Similar letters of reference indicate corresponding parts in the several figures.

Referring to the drawings, A represents the sills on which is laid the floor 1, thelatter sup porting the house-2 and upright frame 3.

Sustained on the door 1 are inclined planes 4 of segmental or curved form,and on the same ride the rollers 5, mounted-0n the under side of the swinging booms6, each of the latter having its inner end hung on gudgeons 7 of abox', 8, through which is freely passed a screw, 9, it being noticed that the g'udgeons 7 project horizontally from the box 8, and the screw is vertical.

Above and below each box are collars 10, which are screwed or otherwise clamped to the screw 9, whereby said box may be raised and lowered, due to the motions ofv the screw, the latter being fitted ina nut, 11 and guided in an eye, 12, said not and eye being connected with beams 13 of a frame on the floor 1.

It will be seen that when the booms are operated in one direction they ride up the planes 4, and are thus elevated, the booms turning on the gudgeons 7.

The angle of the booms may be changed by operating the screws 9, whereby the inner ends of said booms are raised or lowered, by which provision the depth of the ditch to be dug may be varied.

In Fig. 1 the planes 4 diverge, and in Fig.

13 they converge. In the former case provision is made for digging or excavatinga single ditch and depositing the earth or material to the sides thereof. In the latter case two ditches may be formed, and the earth or matcrial deposited between the same.

B represents thescoops, shovels, or buckets of the machine, the same being connected with beams 13", which are braced, as at 14, said beams being pivoted to the booms 6, as at15.

Chains 16 are connected with the inner ends of the beams 13 and passed around pulleys 17 on the booms near the outer ends thereof, said chains being connected with wire or other ropes, 18, passing around pulley-blocks 19, which are attached to the upper part of the frame 3, said ropes passing to and being con nected with friction drums 20, which are loosely fitted on a shaft, 21, the latter being mounted on the floor 1.

It will be noticed that the pulleys 25 are not I their lower ends to the booms and passed atright and left, respectively, of the\sam e," (see Fig, 1,)sthat as chains 23 are wound upon.

the drums 26 and the booms-'are elevated the latter swing or-Iinove laterally, so as tq,come

..more directly under the pulleys. r

Connected with the bails'of the shovels-are chains 22, to which are attachedwire or other ropes 23, the latter running on ,pulleys 24 on} the booms 6, and alsoon pulley-blocks 25, and passing to and connected with the hoistingdrums 26, the latter beingrigidly connected with the shaft 21, above referred-to.

0. represents spars,-whih are pivoted at their upper ends through clamping or grippingdevices 27, consisting of boxes or frames 28 and'gripping-plates- 29,- which are guided on said frame so as to move toward and from the'sides of said boxes. Pivoted to the plates are links 30, which are pivoted'to the outer ends-of arms 31,whose innerends are secured -to vertical rods 32, whichare guidedjn ears 5 notches orteeth 39-of a quadrant, 40,-it being noticed that when the levers are operated in one direction the rods 32 are lowered,whereby,

owing to the arms 31, the links 30 are forced inwardly, thus pressing the plates 29 against the spars and firmly gripping the same. When the levers are moved in the opposite .direction, the rods are raised, whereby the 'plates 29 are withdrawn from the spars and thelatter released. Adjacentto thequadrans 40 are quadrants 41, which have teeth or notches 42, with either of which engage dogs or pawls 43 on levers 44, it being noticed that the quadrants 40 and 41 are mounted onthe floor 1. The levers 44 are secured to rockshafts 45, which carry cranks 46 and 47 .7

o 5 rods 48, to which are secured the'levers 49, the upper ends whereof are attached at 50to brakes D, the latter being formed in sectionsor shoes, each having semi-cylindrical faces ticed that-the sections "or shoes are connected at oneend by links 51,whereby they may open and close. pivoted the brake-bars,52, which are pivoted to the lever 49 below the place of connection 50, of said lever with the other section of the brake. cesses 51 in theirinner sides to receive the friction-cones 52,'which are rigidly secured to the 6 shaft 21 and act as aclutch. i To the cranks 47 arepivoted rods or bars 33 on the boxes 28, and each formed insec-' tions which are connected by swivel-joints 34, u so that said rods mayturn "with the boxes To the'cranks 46 arefattached connecting to embrace the loose drnms 20, it being no To one section of each brake are The loose drums 20 have conical re cated-to' embrace the shatt 21, and made of wedge shape and bearing" against the outersides of the loose drums 20, so that aim proper time said drums are forced into engaging conthe 'ofipos it eends," otwhich' are bifur tact with the cones52, and thus caused to ro- .tatettherewith. 0

It will be seen that the cranks 46 and 47 project in opposite directions or. at right angles toeach others Consequently when the levers "44 are operated in one direction the wedge 54- is withdrawn, whereby the loose drums are disengaged from the cones and therods 48 are forced from the brakes. Consequently wing to the levers 49, the connection 50, and the bars .52, the two sections of the brake are forced toward each other, and thus closed on the loose pulleys,thu s braking'or holding the same. I

Now when the levers 44 are operatedinthe opposite direction,.the brake-sections are sepa-- rated and the loose drums released therefrom. Simultaneously therewith the wedges 54 are forced against theloose drums and the latter moved into lockingcontact with the friction cones, soas to receive rotation therefrom.

The operation is as follows: When the parts are in. position, (shownf in Fig. 1,)"the left} handshovel is" represented as in the acto'f loading, while the right-hand shovel has its descend.

contents discharged and the boom is about-to- When a shovel comes in contact with the earth, itvis advanced, owing to the chains22 and rope 23, thelatterbeing wound, upon the drum 26, said shovel turning with: its beam 13 onthe boom 6,-as shown by the dotted lines, Fig. 5." When the loaded shovel strikes the boom, the latter receives motion,

owing to the continued winding of the rope 23 v on the drum 26. Prior to this time the spar G has been gripped by the plate 29 and boxes e 2 so as to hold the boom immovable during t the loading operation. When the boom is about to ascend, the workman or operator moves the lever 37 so as to raise the rod 32,

wherebythe plate 29 is withdrawn and the spar released. The boom ascends and rideson the guide or plane 4, whereby itI-is bothelevat ed and swung laterally or to one side, and

continues to ascend toits full extent.

motor is now reversed, so as to rotate the shaft 21 in opposite direction to that previously running. 'Therope 23 is thus unwound andslackened, and the shovel under action of the cord 18 on the beam -13is overturned brakes D, which are in turned controlled by When? the lever- 3 7 is moved, the lever 44 is also and its load dumped, the position of parts he ing shown at the right-hand side of Fig. 1.

The operator now allowsthe rope 18 to play out, andcontrols the same by means of the the lever44 in the hand of the operator.- As

the rope 18 plays out, the shovel is permitted to descend, which it does, and the boom rides down the guide 4 to the position necessary for the shovel to take a fresh load. The engine or motor is again reversed and the grip operated so as to hold the spar. The rope 23 begins to wind, the shovel is advanced against the earth and takes a load, theshovel then being further carried toward the boom and the latter raised, after which the other operations are similar to those hereinbelore set forth.

It will be seen that the operation of the two booms and shovels with connected parts is such that as one shovel is being loaded the other is being unloaded.

The slope or pitch of the sides of the ditch is determined by the nature of the lower portions of the upper faces of the guides it, and said port-ions may be changed, as desired, to vary said slope or pitch so as to increase or decrease the same.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. A ditching, dredging, or excavating machine having two shovel carrying booms adapted to be alternately operated, substan tially as described.

2. A ditching, dredging, or excavating ma chine having two booms with connected shovels, two guides extending in opposite directions, chains or ropes connected with the shovels for raising and overturning the same, and winding mechanism, whereby the booms are alternately operated in order to advance and return the shovels to and from the ditch or excavation, load the same, and discharge the excavatcd material on opposite sides of the excavation, substantially as described.

3. A ditching, dredging, or excavating ma- ('llillO having a boom, a pivotal connection for said boom, consisting ofa box with gudgeons and a screw passing through said box, and an inclined guide, said parts being combined substantially as described.

4. A ditching, dredging, or excavating machine having a boom, a spar pivoted to said boom, a box through which the upper end of said spar passes, a gripping device attached to said box. and mechanism, substantially as de scribed, for operating said gripping device, said parts being combined substantially as and for the purpose set forth.

A ditching, dredging, or excavating machine having a pivotal boom whose axis is vertically adjustable for forming ditches or excavationsof different depths,substantially as described.

6. A ditching, dredging, or excavating machine having a boom pivoted at its inner end and an inclined guide ol'eircular form,on which said boom is adapted to bear, said parts being combined substantially as and for the purpose set forth.

7. A swinging boom pivoted to a box which is vertically adjusted by means of a screw, substantially as described.

8. In a ditching, dredging, or excavating machine, a swinging. boom, in combination with the box 8, the screw 5), collars 10, and the nut 11, said box being freely fitted on said screw and connected therewith by said collars, substantially as described.

9. A ditching, dredging, or excavating niaehine having a boom pivoted at its inner-end and having a roller on its under face and an inclined guide of segmental form, said parts being combined substantially as and for the purpose Set forth.

10. In a ditching, dredging, and excavating machine, a boom pivoted to the frame of. the machine and having a pulley thereon, a beam pivoted to the boom and having a shovel connected therewith,a pulley secured to the frame of the machine above and out of the vertical line of the pivoted lower end of the boom, a winding-drum, and a chain connected to said shovel and winding-drum and passing around said pulleys of the boom and frame, said parts being combined as described, whereby both a lateral and elevating movement is imparted to said boom.

11. In a ditching, dredging, and excavating machine, a winding drum having a brake formed of linked sections and an operating device consisting of 'a lever pivoted at one end to one of the said sections and having a bar pivoted to the other section, the said bar being pivotally connected to said lever, said parts being combined substantially as and for the purpose set forth.

12. A fixed drum and a loose drum, in combination with a friction cone or clutch adapted to engage with said loose drum, in combination witlrchains or ropes connected with said drums and with opposite portions of the overturning shovel, su bstantiall y as described.

13. In a ditching, dredging, and excavating machine, a rising-and-falling boom pivoted at its lower end, a spar pivoted to said boom,and a guide in which the upper end of said spar has free play, said parts being combined substautiall y as and for the purpose set forth.

14. In a ditching, dredging, or excavating machine, a clamping or gripping device for the spar,consist-ing of a fram'e,a movable plate, a movable rod, and arms and links connected with said rod and plate, whereby the clamp or grip is operated, substantially as described.

15. In a ditching, dredging, and excavating machine, a rising-and-falling boom pivoted at its lower end and having rollers or pulleys thereon, a shovel having its beam pivoted to said boom, operating-chai ns connccted,respectively, to said beam ofshovel, a hoisting-drum, and a loose drum on the same shaft, said parts. being combined substantially as and for the purpose set forth.

16. The rod 32 and the clamping or gripping device of the spar, in combination with the IIO toothed quad rant,and a pawl; on said lever engaging with said quadrant, substantially'as described. f l a 17; In a ditching, dredging, or excavating machine, a rock-shaft and anoperatingrlever therefor,in combination with a crank connected with said shaft, and a' r'od connected with said crankland with a brake, the latter embracing a 1 1 stantiall y as and for the purpose set forth.

, winding-drunnwhich'isloosely mounted on the shaft and r'otated'bythesame through-the me sdium of a friction cone orclutch fixed to said shaft, substantially as described.

18. In a ditching, dredginggor excavating machine, a windingdrum loose on its shaft, and a clutch rig-idly connected therewith, in combination withmeans for causing the engagement'of said drunrand clutch, consisting of awedge, a bar carrying said wedge, a-crank connected with said bar, and arock-shaft carrying said crank, substantially as described.

19. In a ditching, dredging, 0r excavating machine, a rock-shaft,45,carrying two cranks,

combination with abrakeand clutch mechanism, said brake and mechanism being alternately operated 'bfysai'd cranks,'substantially' as described. v ,1 I I 20. A ditching, dredging, or excavating ma 30 chine having aboom, an adjustable pivotal connection for inner, end of said boom, and a 1 guide ofsegmental form having an inclined upper face, said parts being combined sub-- 35 21. A ditching, dredging, or excavating machine having a bo0m with pivotal connection for inner end,"consisting of a b0x', a vertical screw, collars adjustable on'said'screw', and

beams seen red to the frame of the machine and o having eyes attached thereto and in which said screw is guided, said parts being combined substantially as and. for the purposeset forth.

. v EDWIN 0. R001).

Witnesses: Y J OHN A. WIEn ssHEI-M, A. P JENNINGS 

